ffmpeg-ops SKILL.md skillA
ffmpeg-ops from 0xdarkmatter/claude-mods is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add 0xdarkmatter/claude-mods/ffmpeg-ops@git:20261005.42abdfePins git:20261005.42abdfe in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- 0xdarkmatter/claude-mods
- Path
skills/ffmpeg-ops/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261005.42abdfe, committed Oct 5, 2026
- First version recorded
- Jun 12, 2026
- Size
- 16,707 bytes
- Repository stars
- 68
- License
- MIT
Comprehensive ffmpeg/ffprobe media processing: transcode, cut/trim/concat, color grading, loudness normalization, subtitles, GIFs, HLS packaging, hardware encoding, and quality gates (VMAF). Triggers on: ffmpeg, ffprobe, transcode, compress/convert video, extract audio, color grade, hls.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# ffmpeg Operations Operational expertise for ffmpeg/ffprobe: the ~30 commands that cover most real work, the footguns that silently ruin output, EDL-driven editing (edit-as-code), and eight scripts that replace the logic an agent would otherwise re-derive every task. ## Doctrine: probe first **Never transcode, cut, or filter blind.** Every media task starts by probing the input — codec, duration, frame rate (constant or variable?), pixel format, rotation, stream layout. Half of all "ffmpeg did something weird" reports are a property of the *input* the command never checked. ```bash python skills/ffmpeg-ops/scripts/probe-media.py input.mp4 # human summary python skills/ffmpeg-ops/scripts/probe-media.py --doctor input.mp4 # TRIAGE: hazards + exact fixes python skills/ffmpeg-ops/scripts/probe-media.py --json input.mp4 | jq '.data.streams' python skills/ffmpeg-ops/scripts/probe-media.py --keyframes-near 92.5 input.mp4 ``` `--doctor` makes the doctrine self-enforcing: VFR, HDR transfer, rotation metadata, interlacing, non-yuv420p delivery, and moov-at-EOF each come back as a finding **with the exact fix command**, and exit 10 means "fix before processing". …
Read the whole file at its exact version.
How to install
mdr add 0xdarkmatter/claude-mods/ffmpeg-ops@sha256:6a8c44a89df20f15The line at the top of this page pins the label git:20261005.42abdfe, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_3eb6dmblmmw5vebt)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jun 12, 2026 and Oct 5, 2026, about one every 57 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261005.42abdfe latest | 2026-10-05 | 42abdfe | 16,707 B | A | view · diff |
| git:20260708.e0b865f | 2026-07-08 | e0b865f | 27,984 B | A | view · diff |
| git:20260612.1a721be | 2026-06-12 | 1a721be | 28,976 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (16707 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
0xdarkmatter/claude-mods · 68 stars · license MIT · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3eb6dmblmmw5vebt GET https://markdownregistry.com/api/v1/resolve?ref=0xdarkmatter/claude-mods/ffmpeg-ops GET https://markdownregistry.com/api/v1/blob/6a8c44a89df20f15d502b45e3380817773041e76f1024bb21c550c32a5666dbc
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.